Paul iiausmeistek



April 27 1926. P. HAUSMEISTER SAFETY DEVICE FOR GAS. FILLED SPACES Filed July 27, 1925 @wM-M/M voroas par/20211 Ze0'r0(y[ic cel r J Julian/or.

Patented Apr. 27, 1926.

UNITED s'rarss sa'rsnr series.

PAUL HAUSMEISTER, OF GOPIPINGEN, GERMANY.

SAFETY DEVICE FOR GAS-FILLED SPs CES.

Application filed J'u1y27, 1925. Serial No; 46,301.

comn'iunicating with the space protected by Safety devices have beenthe new device. proposed coniprising a plug of porous ina- 15 terial traversed by the gas, the operation of such devices being based on the Davy principle and being further due to the fact that the gas flows in the passages of the porous material at a velocity which is higher than 20 the velocity of propagation of the explosion. However, devices of this kind do not afford absolute protection inasmuch as it may occur that the flame continues burning at the discharge surface of the porous material and 3 thereby heats the'material so as to cause the gas mixture to be ignited at the rear of the afety device. 7 l

It is an object of my invention to overcome this drawback by providing a. body of liquid such as water on the discharge side of the porous plug which prevents the flame of the explosion from coming in contact with the plug.

In the drawings afiixed to this specification I and forming part thereof, the application of my invention to an eleetrolyzer is illustrated diagrannnatically in vertical section by way of example. i

Referring to the drawings 0 is a highpressure electrolyzer tank in which oXyhydrogen gas is generated at the electrodes 0; and b and collected in the chamber (Z at the top of the tank 0.

A second tank It is arranged above the tank 0 and connected therewith by a narrow neck is in which is inserted a plug a of porous material. The second tank is filled with water 7' above the plug 2 so that the from the chamber (Z can rise in small bubbles and can collect in the top 9 of tank it end ing in a discharge pipe The porous plug 0 prevents water from dripping into the chamber d.

If an eigplosion is propagated into the collmtmg chamber 9, which is preferably Small,

backward ignition to the chamber d is pres vented as an uninterrupted flow of gas gh the body of water is impossible.

It is not ecessary that the plug 6 should consist of a. single solid body.

terial suitably packed. Preferably a porous solid body at the bottom is combined with a layer of loose pulverulent material arranged above it. lVit-lrthis arrangement cracks which may form in the solid body are harmless. i 7

'Obviously any liquid other than water might be disposed above the porous plug 6. I wish it to be understood that I do not desire to be limited tothe exact details of construction shown and described, for 0b vious modifications will occur to a person skilled in the art.

I claim: I

1. Safety device for gas filled spaces comprising a porous partition arranged in the path of the flowing gas, and a liquid column above said partition. 7 y

2. Safety device for g1 s filled spaces comprising a porous body and pulverulent material combined to form a partition arranged in the path of the flowing gas, and a liquid column above said partition.

Safety device for electrolyzers comprising an electrolytic cell. a liquid filled container on top of said cell, a narrow neck connecting said container and said cell, and a porous partition iii-said neck.

In testimony whereof I afiix my signature.

PAUL l-IAUSMEISTER.

It might also be composed of granular or pulverulent mav an 

